The average furnace lasts 15 to 20 years. This life span is typical of a furnace with a stainless or aluminized steel heat exchanger. In contrast, old furnaces with heavy metal heat exchangers last for 30 to 40 years, but they are less efficient than newer models, prompting many homeowners to replace them even if they still work.Continue Reading
Once a furnace reaches 15 to 20 years old, its owner should start shopping for a new one. Shopping early allows a homeowner to research the market and leisurely find the best model for their needs. In contrast, if the homeowner waits until the furnace dies, they are forced to shop quickly.
Rising energy bills are usually a sign that the furnace is nearing the end of its lifespan. As furnaces get older, they run less efficiently. Proper maintenance is one way to keep them running efficiently for longer.
As furnaces age, they tend to need a lot of improvements. Homeowners may find themselves spending hundreds of dollars one year just to repeat the pattern the following year. If a furnace is breaking down yearly, it usually indicates that it needs to be replaced. As the furnace ages, it also takes longer to get replacement parts because the repairman usually has to order them.Learn more about Heating & Cooling
Ducts on a forced-air furnace should be cleaned every three to five years if factors such as pets, smoking, home renovations and weather conditions have produced more dust in the home. In some cases, homeowners may choose to only clean ducts when debris, pests or mold affects the system.Full Answer >
Air ducts need to be cleaned every three to five years, according to Angie's List. The amount of use affects how often the pipes need cleaning. Annual inspections ensure that the pipes get cleaned when necessary.Full Answer >
It is not easy to install a furnace with do-it-yourself instructions due to the skill, precision and tools required. An unlicensed individual should not attempt installation no matter the potential savings. Only licensed professionals should install a furnace, as incorrect installation poses a safety hazard to the home and family.Full Answer >
As of 2015, Home Advisor says that furnace repair costs average $200 per year in the United States. The cost to clean a furnace depends on its age, how well it has been maintained, and the availability of filters and other parts that may need to be replaced.Full Answer >